超细氧化铈提高聚氨酯耐热性能研究

Improvements of Heat-resistant Properties of Polyurethane by Ultrafine Cerium Oxide

采用一步法合成聚氨酯,控制超细氧化铈的加入比例,用热重法和机械性能测试分析了聚氨酯的热稳定性和机械性能。结果显示,与普通聚氨酯相比,加入超细氧化铈后聚氨酯的耐热性能明显提高。

Polyurethane samples were prepared by one-step method with different contents of ultrofine cerium oxide.The analyses of thermogravity and mechanical properties of the samples indicated that the heat resistance of the samples was obviously improved by introducing ultrofine cerium oxide.